Staplel-driving machine.



J. DOIG.

sTAPLE DRIVING MACHINE.

APPLICATION FILED MAY I8. 1916.

Patented July 9, 1918.

2 SHEETS-SHEET I.

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l. DOIG. STAPLE DRIVING MACHINE. APPLICATION msn my 1B. me.

Patented July 9, 1918.

2 SHEETS-SHEET 2.

UNITED STATES. PATENT OFFICE.

JAMES DOIG, OF BROOKLYN, NEW YORK, ASSIGNOR T0 EMMA. DOIG, OF BROOKLYN, NEW YORK, EXECUTBIX OF WILLIAM S. DOIG, DECEASED.

STAPLE-DBIVING MACHINE.

Specification of Letters Patent.

Application ile@ lay 18, 1916. Serial No. 98,278.

To all whom it may concern:

Be it known that I, JAMES Dole, a citizen of the United States, residing in the borough of Brooklyn, Kings county, State of New York, have invented certain new and useful Improvements in Staple-Drivin Machines, of whichwthe following is a specification.

My invention relates to a machine for driving staples through a wall or cover forming part of a, box or other receptacle. I will describe a staple driving machine embodyin my invention and then point out the novel eatures in the claim.

In the accompanying draw' Figure 1 is a side elevation of a staple sriving machine embodying my invention. Fig. 2 is a detail sectional view of a portion of the machine shown in Fi 1, drawn to a. larger scale, to show the inltial position of the driving plunger relative] to a staple. Fig. 3 is also a detail sectiona view, showing the position of the plun er part way of its stroke in driving a stap e. Fig. 4 is a sectional view taken on the line 4-4, Fig. 2. Fig. 5 is a sectional view taken on the line 5 5, Fig. 3. Fig. 6 is a detail sectional view taken on the line 6 6 of Fig. 5. Fig. 7 is a detail view of a latching mechanism for insuring that the driving lever shall make a full stroke to drive a staple after leaving its initial driving position. Fig. 8 is a view similar to Fig. 7, but showing the latching mechanism in a different position. Fig. 9 is a detail side elevation of the latching mechanism shown in Figs. 1, 7 and 8. Fig. 10 is a detail view of a part of the machine shown in Fig. 1.

Similar letters of reference designate corre ending parts in all 0f the figures eferrin to the drawings. designates the body o the machine, which is suitably formed to carry the main operating parts of the machine, such as a drivin punch C, an operating lever D connecte with the driving punch, and a staple ma zine E, all of which parts will be more fu y described hereinafter.

The body A. is provided with a suitable base a hav' a downwardly extending Bange or lip a by means of which the machine may be fixed in position to drive a sta 1e or other, fastening device through two wa ls b, b of a receptacle B. In order to adapt the machine to driving a staple or other fastening through a reinforcing angle b for a corner of the receptacle B, the base a is provided with aI recessedportion a2 to accommodate such an angle b2, and to further provide for a proper positionin of the machine at that point, a guide a3 i 10) is adjustably connected, by means of s ots a* and screws a5, with the liange a. A flange or lip a is provided on the guide a for eng'aging an edge of the reinforcing angle b2. he receptacle B shown in the drawings, is of a t pe in which all ofthe walls excepting wall are suitably fastened together. The wall b" serves as a cover which can be slid into and out of position, it being held in position by one or more staples which, as shown, are driven through thewalls b, b and reinforcing angle b2 at an angle. It will'be seen that the angular staples may be readilytaken out, and Without damage to the receptacle, so that the cover or wall b can be removed.

The driving plunger C works in a suitable slot or groove c provided in the body A, which, as here shown, is an larly arranged relatively to the base a. he plunger C is held in the slot c in what may be termed its driving position, by means of a coiled spring c which is held between a head c carried by the plunger C and the body A. The plunger C is moved in the slot c to rive a staple or other fastener by an operating lever D, which is here shown as being voted or fulcrumed at d on the body and having a suitable operating connection with the plunger C. As here shown, the lever D is forked and the two arms of the fork are pivoted or fulcrumed to the body A at d, and the connection between the lever D and the plunger C is here shown as compzrising projections c' carried by the plunger extendin into elongated openings d in the arms o the lever The magazine E for the staples X or other fastenin devices is arranged so that successive stap es ma be fed into the path of the plungerC in e slot c. The feed of the staples as here shown is by gravity, altxg a plate e' which serves to successively f the staples one at a time in the path of the driving plunger C. The plate e is mounted in the magazine to have ongitudinal movement therein, and this is accomplished, as here shown, b means of pms orprojections e carried by t e magzine E whlch projects into slots e' form the plate a'. A

spring e* is provided to normally hold the late e into the path of the plun er C.

he plate e is provided with a beve e on which the Staple X to be driven rests. As the plunger C moves to drive such staple, the plate e is moved out of the way against the action of the spring e, and when the plun er C is returned to its initial position, the p ate e is again returned to its initial osition, and with a staple in position to be riven. This action is clearly shown in Figs. 2 and 3.

In order to insure that the plunger C shall make a complete driving stroke, I provide a latehing mechanism which is shown in Figs. 1, 7, 8 and 9. As was shown, this comprises a lever F which is pivotally mounted on the body A, and provided with a latching end f and with a disengaging end f. Pivotally mounted on the lever F is a awl f* one end of which enga es a stud f to mit its movement in one irection. As will be-seen from Figs. 7 and 8, as the driving lever D is moved to operate the plunger C, it will rst engage the pawl f2 and the lever F will thus be caused to assume the osition shown in Fig. 8. As the driving ever D is moved to complete the movement of the plunger C, it engages the end f' to move the lever F back to its initial position shown in Fig. 7. It will be seen from Fig. 8 that any attempt to return the driving lever D to its initial position before comple tion of the stroke is stopped by the latchin end f of the lever F.

hat I claim as In invention and desire to secure by Letters atent, is:

In a machine for driving fasteners, in combination, a body; a plunger in said body; a spring for holding the plunger in its u per or driving position; an operating mem er for moving the plunger to drive a fastener; a lever pivoted on the body and having a latching end and a disengaging end; a pawl pivoted on the lever and arranged to be engaged by said member to move the latching end of the lever into latching position; and means for supplying fasteners.

In witness whereof, I have signed my name to this s ecifieation, in the presence of two subscribe witnesses.

JAMES DOIG.

Witnesses:

M. L. KIRKLAND, uMAE G. KIRKLAND. 

